The HFA1130 is a High-Speed wideband current feedback amplifier featuring programmable output limits. Built with Intersil’s proprietary complementary bipolar UHF-1 process, it is the fastest monolithic amplifier available from any semiconductor manufacturer. This amplifier is the ideal choice for high frequency applications requiring output limiting, especially those needing ultra fast overdrive recovery times. The output limiting function allows the designer to set the maximum positive and negative output levels, thereby protecting later stages from damage or input saturation. The sub-nanosecond overdrive recovery time quickly returns the amplifier to linear operation, following an overdrive condition. The HFA1130 offers significant performance improvements over the CLC500/501/502.


  • User Programmable Output Voltage Limits
  • Low Distortion (30MHz, HD2): -56dBc
  • -3dB Bandwidth: 850MHz
  • Very Fast Slew Rate: 2300V/µs
  • Fast Settling Time (0.1%): 11ns
  • Excellent Gain Flatness
  • (100MHz): 0.14dB
  • (50MHz): 0.04dB
  • (30MHz): 0.01dB
  • High Output Current: 60mA
  • Overdrive Recovery: <1ns
  • Pb-Free (RoHS Compliant)


  • Residue Amplifier
  • Video Switching and Routing
  • Pulse and Video Amplifiers
  • Wideband Amplifiers
  • RF/IF Signal Processing
  • Flash A/D Driver
  • Medical Imaging Systems
  • Related Literature
  • AN9420, Current Feedback Theory
  • AN9202, HFA11XX Evaluation Fixture

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active SOICN Tube 980
Active SOICN Reel 2500

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
HFA1130 Datasheet Datasheet PDF 765 KB
Application Notes & White Papers
How to Bias Op-Amps Correctly Application Note PDF 263 KB
AN1993: Voltage Feedback versus Current Feedback Operational Amplifiers Application Note PDF 564 KB
AN1694: The Four Basic Building Blocks of an Op Amp Application Note PDF 357 KB
AN535: Design Considerations for a Data Acquisition System (DAS) Application Note PDF 843 KB
AN9663: Converting From Voltage-Feedback to Current-Feedback Amplifiers Application Note PDF 405 KB
AN9653: Use and Application of Output Limiting Amplifiers (HFA1115, HFA1130, HFA1135) Application Note PDF 685 KB
AN9202: Using the HFA1100, HFA1130 Evaluation Fixture Application Note PDF 312 KB
AN9815: Crystal Filter Yields Pure Sine Waves Application Note PDF 211 KB
AN9787: An Intuitive Approach To Understanding Current Feedback Amplifiers Application Note PDF 334 KB
AN9420: Current Feedback Amplifier Theory and Applications Application Note PDF 585 KB
AN9757: A Cookbook Approach to Single Supply DC-Coupled Op Amp Design Application Note PDF 328 KB
PCN14017 - Test Site Change for the Listed Intersil Products - Carsem (CAS) Ipoh, Malaysia Product Change Notice PDF 174 KB
PCN12085 - 8l, 14l, 16l SOIC w/ Gold Bond Wire @ ATP as Alternate Assembly Site Product Change Notice PDF 152 KB
PCN11042 - Manufacturing Site Change for Assembly of Intersil Ceramic Solder Seal Packaged Products - Amkor (ATP) Muntinlupa City, Philippines and Intersil (ISP) Palm Bay, FL Product Change Notice PDF 138 KB
Analog ICs Brochure 日本語 Brochure PDF 4.20 MB
PIN19006 - Price Increase for the Listed Renesas Electronics America Products Price Increase Notice PDF 257 KB
TB514: Operational Amplifier Basics Other PDF 519 KB
PIN17006 - Q1 2017 Price Increase Price Increase Notice PDF 227 KB
PLC15033 - Product Discontinuance / Obsolescence NotificationProducts Product Life Cycle Notice PDF 200 KB
PA14064 - Minimum Line Quantity Change Product Advisory PDF 282 KB
General-purpose operational amplifiers and comparators Pamphlet ( D18268EJ2V0PF00 ) Flyer PDF 1.11 MB